REPAIR/MAINTENANCE OF RCC DUCT COVER AND CERTAIN CIVIL WORKS FROM N-7 TO N-26 AT NAVAL DOCKYARD VISAKHAPATNAM UNDER GE (I) DM VISAKHAPATNAM

Amount

Demolition of Reinforced cement concrete of any description above or and removing the debries outside Naval Dockyard premises complete all as specified and directed.

M&L for RCC M40 grade with Design mix with graded stone aggregate as in Slabs supported on walls, beams and columns in floors,roof, landing, balcony, deck slabs,canopies and in shelves and the like including necessary formwork and providing arrangement of lifting the cover slabs with the mechanical equipments in specified location( working hour to be restricted as per site condition) and complete all as specified and directed.

M&L for mild steel TMT bars 10mm dia and over, cut to length, bent to shape required, including cranking, bending spirally for hooping for columns, hooking ends and binding with and including mild steel wire (annealed) not less than 0.9mm dia or securing with clips all as specified and directed.

M&L for patch repair in concrete surfaces of any depth as required with shrinkage controlled polymer modified fibre reinforced cementitious patch repair mortar Renderoc SP40 of make as approved by GE having a compressive strength of 45 Mpa over a coat of Nitobond SBR or make as approved by GE on the base surfaces includung taking out the old loose concrete complete all as specified and directed. Note : 25 Kg of Renderoc SP40 bag ready to use at site by mixing with water at 4.25 Ltr per bag shall be used for patch repairs in concrete. [Make as Approved by GE.]

Dismantling structural steel work of any description including doors, railing, gates, trusses complete all as specified and directed.

S&F for rolled mild steel plain or chequred plates confirming to Fe-290, Gde E-165 welded, riveted, bolted attachment to supporting structure of capstan, duct covers, valve pit access platform and working in a confined area including making good the disturbed portion of concrete surfaces with 1:1 1/2 :3 type A0 using 12.5mm stone aggregate complete all as specified and directed.

S&F structural steel framed work such as angle, channel, I beams, etc cut to shape, including bending and welding angles as necessary confirming to Fe-290, Gde E-165 as in supporting structure of valley gutters, duct covers, platforms (0 to -15m level) and capstan, ladders framed balusters, walk ways, railings, cable duct covers, lifting arrengements with pulleys, nosing angle and similar works including making good the disturbed portion of concrete surfaces with 1:1 1/2 :3 type A0 using 12.5mm stone aggregate complete all as specified and directed.

M&L for preparation of new steel surfaces and applying two coats of chlorinated rubber paint over a coat of zinc chrome primer complete all as specified and directed.

M&L for preparation of old painted steel surfaces of any description over 10cm width or girth and applying one coat coal tar epoxy paint complete all as specified and directed. Note : - The work will be carried out in every three months or as per direction of Engineer-in-Charge for enhancing its serviceablity. Every coat / work will be measured and paid separately.

M&L for removing the existing damaged, peeled out floor treatment of any description (20mm average thickness) by mechanical / hand tools to expose the concrete surface and disposal of the rubbish from the Naval Dockyard complete all as specified and directed.

M&L for 20mm thick cementitious flooring system after application of epoxy based bonding agent on the prepared jetty floor with Nitoflor Levelcrete of make as approved by GE having a compressive strength of 40Mpa complete. [Make as Approved by GE.]

M&L for application of bonding coat on the prepared old concrete surfaces of the jetty with two component epoxy based bonding agent Nitobond EP of make as approved by GE for laying 20mm thick cementitious flooring system complete. [Make : Nitobond EP of make as approved by GE.]

Complete Removal of existing chemical painted surfaces by mechanical means upto the satisfaction as per directed by Engr-In-Charge

M&L for application of top wearing coat with the properties of Anti-skid, oil resistant, flexible & UV resistant coating system with the following laying methodology :- a) Application of two component Epoxy primer Notoprime 30 of make as approved by GE mixed with mechanical mixer and applied on the Levelcrete surface by using sponge based epoxy roller followed by sprinkling of anti-slip grain No.2 of make as approved by GE on the primed surface on wet condition for skid resistant and allow it to dry for 16-24 hours. b) Application of two component prepacked protective system of Traffic guard Intermediate coat of make as approved by GE mixed with mechanical mixer and applied on the anti-skid surface by using sponge based epoxy roller and allow it to dry for 16-24 hours. c) Application of two component wearing coat, Trafficguard Wearing coarse of make as approved by GE mixed with mechanical mixer and applied on the anti-skid surface by using sponge based epoxy roller and allow it to dry for 16-24 hours. [Make as Approved by GE.]

M&L for preparation of construction joint grooves of size 25 mm X 20 mm, application of primer to the groove, inserting breaker rod in the groove and finally sealing the groove with Polyuretheane based flooring sealent Colpor 200 of make as approved by GE and finishing complete all as specified and directed.

GVR CONSTRUCTIONS (BID ID -3481705)

UNIVERSAL ENTERPRISES (BID ID -3481275)

aswitha engineering works (BID ID -3478850)

SOWRYA CONSTRUCTIONS (BID ID -3481138)

UNITY PROJEKTZ (BID ID -3481375)